Duplex riveting machine



Feb. 9, 1932, A, R. HAVENER 1,844,119

DUPLEX RIVETING MACHINE Filed Jan. 24, 1931 4 Sheets-Sheet 1 HWK/7uur'LQ. Hoz/ve new.

Feb. 9, 1932. A, R, HAVENER 1,844,119

V DUPLEX RIVETING MACHINE Filed'J-an. 24, 1931 4 sheets-sheet 2 Feb. 9,1932. A. R. HAVENER DUPLEX RIVETING MACHINE Filed- Jan. 24, 1931 4Sheets-Sheet 3v Feb. 9, 1932. A R, HAVENER 1,844,119

DUPLEX RIVETING MACHINE Filed Jan. 24, 1931 4 Sheets-Sheet 4 jZimmern/072' l 19H71 u?" R. ffcove 71er",

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@and setting mechanism Patented Feb. 9, 1932 UNITED' STATES PATENTARTHUR R. HAVENER, OF WAYLAND, MASSACHUSETTS, ASSIGNOR TO JUDSONY L.THOMSON MANUFACTURING CO., OF WALTI-IAM, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS Application led January 24, 1931.V

This invention relates to an improved rivet feeding and setting machine,the object of the invention being to provide a rivet feeding andsetting' machine which can feed and set two rivets at a time and whichis so construct-ed that the distance between the rivets which are so setmay be varied as desired, so that t-he same machine can be utilized tfeed and ydrive simultaneously a pair of rivets at any desired distanceapart and this object isattained by embodying in the machine a pair ofrivet feeding and setting mechanisms and fra-mes therefor and a pair ofanvils and frames for the anvils.

frames and anvil frames are adjustable upon amain frame and upon saidmain frame is provided mechanism for actuating the rivet feeding' andsetting mechanisms in any of the relative posit-ions to A further objectof the invention is to provide a mechanism of the character set forthfor feeding and setting rivets, in which cams and springs arepractically eliminated.

The invention consists in the combination and arrangement of partsdisclosed in the following specification and particularly pointed out inthe claims.y

Referring to the drawings n Fig. 1 is a side elevation of a duplex rivetfeeding and setting mechanism embodying my invention, the column of themachine and the clutch rod being broken away.

Fig. 2 is a front elevation of the same.

Fig. 3 is a plan of the said machine.

Fig. 4 is a sectional elevation taken on line 4-4, Fig. 1, viewed in thedirection of the arrows on said line 4.-4.

Fig. 5 is a sectional elevation taken on line 55, Fig. 3,'viewed in thedirection of the arrows on said line 5 5. Y

Fig. 6 is a sectional" front elevation illustrating the materialpositioned on the anvils in readiness to be riveted a portion of therivet carriers and rivet drivers being shown in connection therewith.

Like numerals refer to like parts in the several views of the drawings.

In the drawings, 10 is the column of the 50 machine, 11 the main frameand 12 the main The rivet feeding` DUPLEX RIVETING MACHINEV Serial No.510,98?.

driving shaft, whichis rotated bya pulley 13, y

casings. 24 rotatably mounted on hopper vframes 25 fast to theadjustable frames 18 and 19. The hopper casings 24 are fastened toshafts 26 and the said shafts are each r0- tated by a ratchet 27 whichis given an intermittent step by step rotation by a. pawl 28 pivotallymounted on a pawl carrier 29 which, in turn, is pivoted upon the shaft26, The pawl carrier 29 has a rocking motion imparted thereto by av link30 which is. pivotally connected at 31 to the pawl carrier 29 and at 32to a rivet driver slidel33. The rivet driver slide has a rivet driver34, fastened to its lower endy and is slidably mounted in one of therivet driving mechanism frames 18 or 19 as the case maybe.

The rivet driving and feeding mechanisms, which are mounted upon theframes 18 and 19 respectively, are substantially alike, therefore the'description of one of said mechanisms will apply to both.

The rivets are fed from the rotary hopper casing 24 to a verticalraceway 35 and pass down said raceway tov the bottom thereof where theyare fed by a slide 36 from the lower end of the raceway to the upper endof another raceway 37, by which they arefed downwardly into a rivetcarrier 38 which is mounted upona rivet carrier slide 39 held upwardlyby a spring 40 and moved downwardly by the driver 34, all in aV mannerwell known to those skilled in this art.

The rivet slide 36 has an intermittent sliding movement imparted theretoby a spring 41 which is fasten-ed to a block 42 pivotally mounted upon astud 43 on the lower end of lplaced in mass inhopper a lever 44 which ispivotally mounted upon a stud 45 fast to the frame 18. A spring 43encircles the stud 43 and presses the block 42 against the lower end ofthe lever 44, whereby said block is caused to have a frictionalengagement with the lower end of the lever 44. The lever 44 is connectedby a link 46 to the pin 32 which is fastened to the rivet driver slide33. v yThe rivetcarrier 38 consist-s of two oppositely disposed plates47 which are fastened to fiat spring arms 48 which, in turn, arefastened to the vertical rivet carrier slide 39.

A. reciprocatory movement is imparted to" the rivet driver slides 33 bysecondary rocker arms 50 and 51, said rocker arms being pivotallymounted at 52 and 53 to secondary links 54 and 55. The links 54 and 55are pivoted upon a stationary shaft 56 which extends across the machineand is fastened to ears 57 on the main frame. At their rear ends therocker'arms 50 and 51are pivctally connected at 59 and 60 to primarylinks 61 and 62 which are pivoted to rock upon a pivotal shaft 63,theopposite ends of which are fastened tothe forward end of a pair ofprimary roc zer arms 64 and 65. The primary rocker arms 64 and 65 areVpivoted upon studs 66 and 67 which are fastened to the main frame 11.The rear ends ofthe primary rocker arms 64' and 65 ar-e connected byeccentric rods 68 and 69'to eccentrics 7 0 and 71, the eccentrics beingfastened to the main shaft 12. Y

A pair of anvils 72 and 73 are supported on anvil frames 74 Vand 75which are. adjustable on the main frame 11 and are clamped in positionby bolts 76. Each of the anvils has a spring-actuated guiding` `pin 77projecting upwardly therefromv in alignment with its respective driver34. l Y

In 6 the material 78to be riveted is shown supported upon the anvils 72and 73 with the rivet guiding pins 77 projecting therethrough. y Y Y yThe general operation of the mechanism hereinbefore specificallydescribed is as follows Rivets are placed in mass in the hopper casings24 and pass from the hopper casings down the raceways 35 fromthe lowerends of which they are carriedr by the slides 36 to the upper ends ofthe raceways 37. vThe rivets pass down the raceways 37 and into theirrespective rivet carriers 38 and then stand in the positions illustratedby the rivets 79, Fig. 6. The rivet driver slides are moved downsimultaneously by the secondary rocker arms 50 Vand .51, primary rockerarms 64and 65, Vprimary links I 61 and 62, eccentric rods 68 and69eccentrics 7 0 and 71 and maindriving shaft 12the drivers 34descending push the rivet carriers, together with the rivets, downwardlyuntilthej lower edges of the plates 47 are in Contact with the uppersurface of the material 78 which is to be riveted, whereupon a stop pin39 on each of the rivet carrier slides 39 engage the upper surface ofthe frames 18 and 19 and stop further downward movement of the carrierslides, whereupon the rivets 79 are forced downwardly through thematerial 78, the guide pin 77 entering the rivets 79, which are tubular,and guiding` the rivets through the material 7 8 during the clinchingoperation, and the guide pm 77 being spring sup- J ported movesdownwardly into the anvils 72 during this clinching operation.

l/Jhen it is desired to insert rivets at different distances apart fromthat shown in thedrawings, the frames 18 and 19 are moved toward or awayfrom each other, as may be desired, by loosening the nuts 23 and pushingthe frames 18 and 19 along on the main frame until they are moved to thedesired distance apart and said frames 18 and 19 are then clamped to themain frame 11 by the nuts 23 and bolts 22. The anvils are tiren adjustedto bring them into alignment with their respective rivet drivers andthis is done by loosening the nuts 76 on the bolts 76 and sliding theanvil frames 74 and 75 to the desired distance apart, whereupon they arelocked in position upon the main frame by tightening up on the nuts 7 6.

.Y During this adjusting of the rivet mechanism frames and anvil frames,the secondary rocker arms 50 and 51, together with'the secondary links54 and 55 are moved toward or away from eachother as the case maybe, thelinks 54 and 55 sliding along on the shaft 56, at the same time theprimary links 61 and 62 slide, along the shaft 63. The Aprimary rockerarms 64 remain in the same position relatively to the main frame. Y

As the rivet driver slide 33 is moved down, the pawl carrier 29 willberocked toward the right,Fig. 4, bythe link 30, the pawl retreating overthe ratchet27 during this movement and the lever 44 will be rocked bythe link 46 to move the block 42 and spring arm 41 toward the right,Fig. 4, thus moving the slide 36 to feed a rivet from the lower end ofthe raceway 35 to the upper endvof the raceway 37 and the rivet thendescends the raceway readiness to driver 34.

After the rivet has been set in the material, the rivet driver slides 33move upwardly, the slide 36 moves Vback to receive another rivet fromthe raceway 35, and the pawlcarrier 29 is rocked with its pawl 28 tocause the ratchet 27 to be rotated a step, thus giving an intermittentrotation to the shaft 26 and be fed down to the work by the to thehopper casing 24. The operator then "M actuates the clutch to vdisengagethe pulley 13 from clutch engagement with the shaft 12 and the operatorremoves the material 78 from the anvils 72 and pins 78 and placesanother piece of material comprising two layers f 37 to enter the vrivetcarrier 38 in 78 on the anvil pins 77. The operation hereinbeforedescribed is then repeated.

I claim:

l. A duplex riveting machine having, in combination, a rivet settingmechanism frame, a rivet setting mechanism on said frame, said rivetsetting mechanism embodying therein a rivet driver slide, a main frameon which said rivet setting mechanism frame may be adjusted, a secondaryrocker arm connected to said rivet driver slide, said arm being mountedon said main frame and adjustable thereon together with said rivetsetting mechanism, a primary rocker arm connected to said secondaryrocker arm and mounted on the main frame, and mechanism mounted on themain frame to impart a rocking motion to said rocker arms.

2. A duplex riveting machine having, in combination, a rivet settingmechanism frame, a rivet setting mechanism on said frame, said rivetsetting mechanism embodying therein a rivet driver slide, a main frameon which .said rivet setting mechanism frame may be adjusted, asecondary rocker-arm connected to said rivet driver slide, said armbeing mounted on said main frame and adjustable thereon together withsaid rivet setting mechanism, a primary rocker arm connected to saidsecondary rocker arm and mounted on the main frame, a main driving shaftrotatably mounted on said main frame, an eccentric fast to said maindriving shaft, and an eccentric rod connecting said eccentric to saidprimary rocker arm.

3. A duplex riveting machine having, in combination, a rivet settingmechanism frame, a rivet setting mechanism on said frame, said rivetsetting mechanism embodying therein a rivet driver slide, a secondarypivotal shaft, a secondary link on said secondary pivotal shaft andadjustable thereon longitudinally thereof, a secondary rocker armpivotally mounted on said secondary link and connected to said rivetdriver slide, a primary pivotal shaft, a primary link mounted on saidprimary pivotal shaft and adjustable longitudinally thereon, a primaryrocker arm pivotally mounted on said main frame, said primary pivotalshaft being supported on said primary rocker arm, and mechanism mountedon the main frame to impart a rocking motion to said primaryrockerV armand through it to said secondary rocker arm.

4. A duplex riveting machine having, in combination, a rivet settingmechanism frame, rivet setting mechanism on said frame, said rivetsetting mechanism embodying therein a rivet driver slide, a secondarypivotal shaft, a secondary ondary pivotal shaft and adjustable thereonlongitudinally thereof, a secondary rocker arm pivotally mounted on saidsecondary link and connected to said rivet driver slide, a primarypivotal shaft, a primary link pivotlink on said secally mounted on saidprimary pivotal shaft and adjustable longitudinally thereon, a primaryrocker 4arm pivotally mounted on lsaid main frame, said primary pivotalshaft being supported on said primary rocker arm, a main driving .shaftrotatably mounted on said main frame, an eccentric fast to said maindriving shaft, and an eccentric rod connecting said eccentric to saidprimary rocker arm; y 5. A duplex riveting machinehaving, incombination, two rivet setting mechanism frames, a rivet settingmechanism on each of said frames, said Vrivet setting mechanisms eachembodying a rivet driver slide, a main frame on which said rivet settingmechanism frames' may be adjusted toward and away from each other, asecondaryirocker arm connected to each of said rivet driver slidesrespectively, said rocker arms being mounted on said main frame andadjustable toward and away from each other, a primary rocker armconnected to each of said secondary rocker arms respectively and mountedon said main frame, and mechanism mounted on the main frame to' impart arocking motion to said rocker arms.

6. A duplex riveting machine having, in combination, two vrivet settingmechanism frames, a rivet setting mechanism oneach of said frames, saidri'vetsetting mechanisms each embodying a rivet driver slide, a'mainframe ony which said lrivet setting mechanism frames may be adjustedtoward and away from each other, a secondary rocker arm connected toeach of said rivet driver slides respectively, said rocker arms beingmounted on said main frame and adjustable toward and away from eachother, a primary rocker arm connected to each of said secondary rockerarms respectively and mounted on said main frame, a main driving shaftrotatably mounted on said main frame, a pair of eccentrics fast to lsaidmain drivingshaft,

and a pair of eccentric rods connecting said eccentrics to said primaryrocker arms.

7 A duplex riveting machine having, in combination, two rivet settingmechanism frames, a rivet setting mechanism on each of said frames, saidrivet setting mechanisms each embodying a rivet driver slide, asecondary pivotal shaft extending transversely of said main frame, apair of secondary links on said secondary pivotal shaft and adjustablethereon relatively to each other, a secondary rocker arm pivotallymounted on each of said links respectively, each of said secondaryrocker arms being connected to one of saidrivet driver slides, a primarypivotal shaft extending transversely of said main frame, a pair ofVmounted on said primary pivotal shaft and adjustable toward and awayfrom each other,

a pair of primary rocker arms pivotally mounted on said main frame,

said primary pivotal shaftv being supported primary links Vpivotallyupon said primary rocker arms,'and mechanism mounted on the main frameto impart a rocking motion to said primary rocker arms and through themto said seconday rocker arms.

8. A duplex riveting machine having, in combination, two rivet settingmechanism frames, a rivet setting mechanism on each of A Y said frames,said rivet setting mechanisms each embodylng a rivet driver slide, asecondary pivotal shaft extending transversely of said main frame, apair of secondary links on said secondary pivotal shaft and adjustablethereon relatively to each other, a secondary rocker arm pivotallymounted on each of said links respectively, each of said secondaryrocker arms being connected to one of said rivet driver slides, aprimary pivotal shaft extending transversely of said main frame, a pairof primary links pivotally mounted on said primary pivotal shaft andadjustable toward and away from each other, a pair of primary rockerarms pivotally mounted on said main frame, said primary pivotal shaftbeingsupported upon said primary rocker arms, a main driving shaftrotatably mounted on said main frame, a pair of eccentrics fast to saidmain driving shaft, and a pair of eccentric rods connecting saideccentrics to said vprimary rocker arms.

In testimony whereof I have hereunto set my hand. l

' ARTHUR R. HAVENER.

